Is This Inflammatory Breast Cancer or not?

My Mum showed me Today a rash on her Right Breast. It is a small rash and she says it is itchy and sore. She said it feel like there is a lump behind it but she’s not sure if it’s just the rash or an actual lump in her breast. I asked her if she would describe the soreness as an aching pain but she said no it was just sore because the rash is sore. Does this sound like Inflammatory Breast Cancer or not? I have been reading about Inflammatory Breast Cancer and some of the symptoms sound like it. Does it present itself as itchy or not?

Thank You .

I don’t know what to say, but I do want to say is hope it’s nothing bad! Good luck x